Read: Romans 8:14-17 and Psalm 33:12-22
There is rich symbolism within baptism. One idea is that by being baptized we are brought into the Church as a new creation. The old, sinful self has died and has been resurrected into new life in Christ. Where circumcision was the sign of the covenant of Abraham, baptism is a sign of the new covenant. Where circumcision signified that the man was a Jew, born into the covenant, baptism signifies that we’ve been resurrected into the new covenant, both men and women, and that God has adopted us as his children.
God has adopted you. Certainly this is a reason to rejoice! Now, how can you spread the good news? Ask God to help you. Then go get busy.